derek.holloway
7502bf64a4
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48 lines
1.4 KiB
LLVM
48 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=reassociate -S < %s | FileCheck %s
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declare void @use(float)
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define void @test1(float %x, float %y) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[TMP1:%.*]] = fmul fast float [[Y:%.*]], [[X:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = fmul fast float [[Y]], [[X]]
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; CHECK-NEXT: [[TMP3:%.*]] = fsub fast float [[TMP1]], [[TMP2]]
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; CHECK-NEXT: call void @use(float [[TMP1]])
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; CHECK-NEXT: call void @use(float [[TMP3]])
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; CHECK-NEXT: ret void
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;
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%1 = fmul fast float %x, %y
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%2 = fmul fast float %y, %x
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%3 = fsub fast float %1, %2
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call void @use(float %1)
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call void @use(float %3)
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ret void
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}
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define float @test2(float %x, float %y) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[TMP1:%.*]] = fmul fast float [[Y:%.*]], [[X:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = fmul fast float [[Y]], [[X]]
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; CHECK-NEXT: [[TMP3:%.*]] = fsub fast float [[TMP1]], [[TMP2]]
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; CHECK-NEXT: ret float [[TMP3]]
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;
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%1 = fmul fast float %x, %y
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%2 = fmul fast float %y, %x
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%3 = fsub fast float %1, %2
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ret float %3
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}
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define float @test3(float %x, float %y) {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: [[FACTOR:%.*]] = fmul fast float [[Y:%.*]], [[X:%.*]]
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; CHECK-NEXT: [[REASS_MUL:%.*]] = fmul fast float [[FACTOR]], 2.000000e+00
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; CHECK-NEXT: ret float [[REASS_MUL]]
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;
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%1 = fmul fast float %x, %y
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%2 = fmul fast float %y, %x
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%3 = fadd fast float %1, %2
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ret float %3
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}
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